Optimized synthesis and mechanism of formation of 2,4-dichloro-1,3-bis(dichlorophosphoryl)-2,4-dioxocyclodiphosph(V)azane from phosphoryl chloride and ammonium chloride
Abstract
Detailed investigation of the reaction between [NH4]Cl and an excess of POCl3 has established a procedure for isolation of the main product, the novel title cyclodiphosph(V)azane, and permitted the identification of three other reaction products, namely, pyrophosphoryl chloride, hexachlorocyclotriphosph(V)azene, and PPP-trichloro-N-dichlorophosphorylmonophosph(V)azene. A reaction mechanism is proposed which accounts for the formation of all four products.